Alert archive / Mississippi / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 528, NWS Jackson, MS

July 22, 2023Claiborne County, Jefferson County, Mississippi; Tensas Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Jul 22, 2023, 4:06 PM CDT for Claiborne County, Jefferson County, Mississippi; Tensas Parish, Louisiana. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 22, 2023, 4:06 PM CDT (21:06 UTC)
Expired
Jul 22, 2023, 5:00 PM CDT
In force
54 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Tensas Parish, LA, Claiborne County, MS, Jefferson County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 113 km from the middle of the area, began a volume at 21:08 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.1 hours before the alert went out and 106 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Jackson, MS at 12:00Z on 2023-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2243 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2023-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2243 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
945 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jackson, MS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 22, 3:03 PM CDT, 1 hour 3 minutes earlier.

Area forecast discussion, Jul 22, 3:03 PM CDT, 1 hour 3 minutes before
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Hazardous weather outlook, Jul 22, 12:26 PM CDT, 3 hours 40 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
1226 PM CDT Sat Jul 22 2023

ARZ074-075-LAZ007>009-015-016-MSZ018-019-025>047-050-231730-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Madison LA-Bolivar-Sunflower-Leflore-Grenada-Carroll-Montgomery-
Webster-Clay-Lowndes-Choctaw-Oktibbeha-Washington-Humphreys-
Holmes-Attala-Winston-Noxubee-Issaquena-Sharkey-Yazoo-Madison MS-
Leake-Neshoba-Kemper-Warren-Scott-
1226 PM CDT Sat Jul 22 2023

This hazardous weather outlook is for portions of southeast
Arkansas, northeast Louisiana, central Mississippi, and north
central Mississippi.

.DAY ONE...The rest of Today and Tonight

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations is not expected through next Friday.

LAZ023-MSZ048-231730-
Franklin LA-Hinds-
1226 PM CDT Sat Jul 22 2023

This hazardous weather outlook is for portions of northeast
Louisiana, and central Mississippi.

.DAY ONE...The rest of Today and Tonight

DANGEROUS HEAT
THREAT...Limited
TIMING...Remainder of today

Remainder of today, caution is advised for possible dangerous
heat as heat index values peak near 105 degrees. Heat exhaustion
will be possible with outdoor activity.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations is not expected through next Friday.

LAZ025-MSZ049-053-055>057-231730-
Tensas-Rankin-Claiborne-Simpson-Smith-Jasper-
1226 PM CDT Sat Jul 22 2023

This hazardous weather outlook is for portions of northeast
Louisiana, central Mississippi, east central Mississippi, and
southwest Mississippi.

.DAY ONE...The rest of Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Remainder of today through evening

DANGEROUS HEAT
THREAT...Limited
TIMING...Remainder of today

Remainder of today through evening, isolated severe thunderstorms
are possible. Some thunderstorms could produce damaging wind
gusts and hail up to quarter size.

(https://www.weather.gov/images/jan/graphicast/1.png)

Remainder of today, caution is advised for possible dangerous
heat as heat index values peak near 105 degrees. Heat exhaustion
will be possible with outdoor activity.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region rest of
today through tonight.

MSZ051-052-231730-
Newton-Lauderdale-
1226 PM CDT Sat Jul 22 2023

This hazardous weather outlook is for portions of east central
Mississippi.

.DAY ONE...The rest of Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Remainder of today through evening

Remainder of today through evening, isolated severe thunderstorms
are possible. Some thunderstorms could produce damaging wind
gusts and hail up to quarter size.

(https://www.weather.gov/images/jan/graphicast/1.png)

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region rest of
today through tonight.

LAZ024-MSZ054-059-062-063-231730-
Catahoula-Copiah-Jefferson-Lincoln-Lawrence-
1226 PM CDT Sat Jul 22 2023

This hazardous weather outlook is for portions of northeast
Louisiana, central Mississippi, south central Mississippi, and
southwest Mississippi.

.DAY ONE...The rest of Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Remainder of today through evening

DANGEROUS HEAT
THREAT...Elevated
TIMING...Remainder of today

Remainder of today through evening, isolated severe thunderstorms
are possible. Some thunderstorms could produce damaging wind
gusts and hail up to quarter size.

(https://www.weather.gov/images/jan/graphicast/1.png)

Remainder of today, dangerous heat likely with peak heat index
values ranging from 106 to 110 degrees. Heat exhaustion will be
likely with outdoor activity.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region rest of
today through tonight.

LAZ026-MSZ060-061-231730-
Concordia-Adams-Franklin MS-
1226 PM CDT Sat Jul 22 2023

This hazardous weather outlook is for portions of northeast
Louisiana, and southwest Mississippi.

.DAY ONE...The rest of Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Remainder of today through evening

DANGEROUS HEAT
THREAT...Significant
TIMING...Remainder of today

Remainder of today through evening, isolated severe thunderstorms
are possible. Some thunderstorms could produce damaging wind
gusts and hail up to quarter size.

(https://www.weather.gov/images/jan/graphicast/1.png)

Remainder of today, dangerous heat expected with peak heat values
around 110 degrees. Heat stroke will be a significant concern
with outdoor activity.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region rest of
today through tonight.

MSZ058-231730-
Clarke-
1226 PM CDT Sat Jul 22 2023

This hazardous weather outlook is for portions of east central
Mississippi.

.DAY ONE...The rest of Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Remainder of today through evening

FLOODING
THREAT...Limited
TIMING...Remainder of today through evening

DANGEROUS HEAT
THREAT...Limited
TIMING...Remainder of today

Remainder of today through evening, isolated severe thunderstorms
are possible. Some thunderstorms could produce damaging wind
gusts and hail up to quarter size.

(https://www.weather.gov/images/jan/graphicast/1.png)

Remainder of today through evening, localized flash flooding is
possible, particularly in low lying and urban areas.

(https://www.weather.gov/images/jan/graphicast/2.png)

Remainder of today, caution is advised for possible dangerous
heat as heat index values peak near 105 degrees. Heat exhaustion
will be possible with outdoor activity.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region rest of
today through tonight.

MSZ064-065-231730-
Jefferson Davis-Covington-
1226 PM CDT Sat Jul 22 2023

This hazardous weather outlook is for portions of south central
Mississippi, and southeast Mississippi.

.DAY ONE...The rest of Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Remainder of today through evening

FLOODING
THREAT...Limited
TIMING...Remainder of today through evening

DANGEROUS HEAT
THREAT...Elevated
TIMING...Remainder of today

Remainder of today through evening, isolated severe thunderstorms
are possible. Some thunderstorms could produce damaging wind
gusts and hail up to quarter size.

(https://www.weather.gov/images/jan/graphicast/1.png)

Remainder of today through evening, localized flash flooding is
possible, particularly in low lying and urban areas.

(https://www.weather.gov/images/jan/graphicast/2.png)

Remainder of today, dangerous heat likely with peak heat index
values ranging from 106 to 110 degrees. Heat exhaustion will be
likely with outdoor activity.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region rest of
today through tonight.

MSZ066-231730-
Jones-
1226 PM CDT Sat Jul 22 2023

This hazardous weather outlook is for portions of southeast
Mississippi.

.DAY ONE...The rest of Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...Remainder of today through evening

FLOODING
THREAT...Limited
TIMING...Remainder of today through evening

DANGEROUS HEAT
THREAT...Elevated
TIMING...Remainder of today

Remainder of today through evening, severe thunderstorms are
possible. Some thunderstorms could produce damaging winds to
60 to 70 mph and quarter size hail.

(https://www.weather.gov/images/jan/graphicast/1.png)

Remainder of today through evening, localized flash flooding is
possible, particularly in low lying and urban areas.

(https://www.weather.gov/images/jan/graphicast/2.png)

Remainder of today, dangerous heat likely with peak heat index
values ranging from 106 to 110 degrees. Heat exhaustion will be
likely with outdoor activity.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region rest of
today through tonight.

MSZ072>074-231730-
Marion-Lamar-Forrest-
1226 PM CDT Sat Jul 22 2023

This hazardous weather outlook is for portions of south central
Mississippi, and southeast Mississippi.

.DAY ONE...The rest of Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Slight
TIMING...Remainder of today through evening

FLOODING
THREAT...Limited
TIMING...Remainder of today through evening

DANGEROUS HEAT
THREAT...Significant
TIMING...Remainder of today

Remainder of today through evening, severe thunderstorms are
possible. Some thunderstorms could produce damaging winds to
60 to 70 mph and quarter size hail.

(https://www.weather.gov/images/jan/graphicast/1.png)

Remainder of today through evening, localized flash flooding is
possible, particularly in low lying and urban areas.

(https://www.weather.gov/images/jan/graphicast/2.png)

Remainder of today, dangerous heat expected with peak heat values
around 110 degrees. Heat stroke will be a significant concern
with outdoor activity.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Sunday through Friday

The probability for widespread hazardous weather is low.

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region rest of
today through tonight.

23

&&

...HAZARD LEGEND...

*DANGEROUS HEAT*
Extreme...Extreme heat is expected with peak heat index values
 in excess of 110 degrees for multiple days. Heat stroke continues
 to be a major concern.
Significant...Dangerous heat expected with peak heat index values
 in excess of 110 degrees. Heat stroke will be a significant
 concern.
Elevated...Dangerous heat likely with peak heat index values
 ranging from 106 to 110 degrees. Heat exhaustion will be likely.
Limited...Caution is advised for possible dangerous heat as
 heat index values peak near 105 degrees. Heat exhaustion will
 be possible.

*SEVERE THUNDERSTORMS*
High...Significant severe thunderstorms and tornadoes are
 likely with strong or violent tornadoes possible.
Moderate...Significant severe thunderstorms and tornadoes are
 likely with strong tornadoes possible.
Enhanced...Severe thunderstorms are likely and tornadoes are
 possible.
Slight...Severe thunderstorms and tornadoes are possible.
Marginal...Isolated severe thunderstorms are possible.

*FLOODING*
Extreme...Widespread and significant flooding is likely.
Significant...Widespread flash flooding is likely
 and significant flooding is possible.
Elevated...Areas of flash flooding likely.
Limited...Localized flash flooding is possible.

...USEFUL WEATHER WEB PAGES (URLS)...

NWS JAN Home page...
   https://www.weather.gov/jan
Stay Aware, Stay Safe NWS JAN Briefing Page...
   https://www.weather.gov/jan/safe
Latest Weather Briefing...
   https://www.weather.gov/jan/weather_briefing

Tropical page...
   https://www.weather.gov/srh/tropical?office=jan
National Hurricane Center Home Page...
   https://www.nhc.noaa.gov/
Find NWS JAN on Facebook...
   https://www.facebook.com/NWSJacksonMS
Follow NWS JAN on Twitter...
   @NWSJacksonMS
Follow NWS JAN on Youtube...
   https://www.youtube.com/user/NWSJacksonMiss

...ADDITIONAL URLS FOR SEVERE WEATHER ISSUES...

Storm Prediction Center (SPC)...
   https://www.spc.noaa.gov/
Meso Analysis...
   https://www.spc.noaa.gov/exper/mesoanalysis/
Day 1 through 3 Outlooks...
   https://www.spc.noaa.gov/products/outlook/
Storm Reports...
   https://www.spc.noaa.gov/climo/online/
...ADDITIONAL URLS FOR FLOODING ISSUES...

Current Watches and Warnings...
   https://www.weather.gov/jan/safe_HeavyRain

Observed Precipitation Images...
   https://www.weather.gov/jan/precipmaps

River Forecast Center...
   https://www.weather.gov/lmrfc/
Significant River Flood Outlook...
   https://www.wpc.ncep.noaa.gov/nationalfloodoutlook/index.html
Day 1 through 3 Excessive Rainfall...
   https://www.wpc.ncep.noaa.gov/qpf/excess_rain.shtml
Excessive Rainfall Discussion...
   https://www.wpc.ncep.noaa.gov/discussions/qpferd.html
Day 1 through 7 QPF...
   https://www.wpc.ncep.noaa.gov/qpf/qpf2.shtml
QPF Discussion...
   https://www.wpc.ncep.noaa.gov/discussions/qpfpfd.html

In the hours before

Special weather statement, Jul 22, 3:09 PM CDT, 57 minutes before
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Special weather statement, Jul 22, 3:26 PM CDT, 40 minutes before
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Special weather statement, Jul 22, 3:36 PM CDT, 30 minutes before
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Special weather statement, Jul 22, 3:38 PM CDT, 28 minutes before
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Special weather statement, Jul 22, 4:01 PM CDT, 5 minutes before
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Special weather statement, Jul 22, 4:02 PM CDT, 4 minutes before
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The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 22, 12:10 PM CDTSevere Thunderstorm WarningJANCovington, Jones, Smith65 min
Jul 22, 12:42 PM CDTSpecial Weather StatementJANCovington, Jefferson Davis33 min
Jul 22, 12:46 PM CDTSevere Thunderstorm WarningJANCovington, Jones59 min
Jul 22, 12:54 PM CDTSevere Thunderstorm WarningJANCovington, Jefferson Davis66 min
Jul 22, 1:17 PM CDTSevere Thunderstorm WarningJANCovington, Forrest, Jefferson Davis, Jones, Lamar, Marion58 min
Jul 22, 1:44 PM CDTSevere Thunderstorm WarningJANForrest, Lamar, Marion61 min
Jul 22, 2:09 PM CDTSevere Thunderstorm WarningJANCovington, Forrest, Jefferson Davis, Jones, Lamar, Marion45 min
Jul 22, 2:48 PM CDTSpecial Weather StatementJANMarion57 min
Jul 22, 2:53 PM CDTSpecial Weather StatementJANMarion37 min
Jul 22, 2:57 PM CDTSpecial Weather StatementJANJefferson Davis33 min
Jul 22, 3:04 PM CDTSpecial Weather StatementJANSmith41 min
Jul 22, 3:09 PM CDTSpecial Weather StatementJANJefferson Davis51 min
Jul 22, 3:22 PM CDTSevere Thunderstorm WarningJANCovington, Jefferson Davis, Lamar, Marion26 min
Jul 22, 3:26 PM CDTSpecial Weather StatementJANLawrence34 min
Jul 22, 3:32 PM CDTSevere Thunderstorm WarningJANLawrence, Lincoln43 min
Jul 22, 3:36 PM CDTSpecial Weather StatementJANJasper39 min
Jul 22, 4:01 PM CDTSpecial Weather StatementJANJefferson Davis44 min
Jul 22, 4:02 PM CDTSpecial Weather StatementJANClarke43 min
Jul 22, 4:12 PM CDTSevere Thunderstorm WarningJANAdams19 min
Jul 22, 4:30 PM CDTSevere Thunderstorm WarningJANAdams40 min
Jul 22, 2:27 PM CDTSpecial Weather StatementJANAvoyelles48 min
Jul 22, 3:38 PM CDTSpecial Weather StatementJANTensas52 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2023Severe Thunderstorm Warnings in Louisiana, 2023Every severe thunderstorm warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.